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Copyright © 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
7. CIRCUIT DIAGRAM
CN903
18
17
19
16
20
15
21
14
22
13
23
12
24
11
25
10
26
9
27
8
28
7
29
6
30
5
31
4
32
3
33
2
34
1
2
0
9
R
K
7.
4
VREG_KEY_TOUCH_1.8V
CN901
11
10
12
9
13
8
14
7
15
6
16
5
17
4
18
3
19
2
20
1
C915
39p
3
0
9
R
K
0
1
+VPWR
K
7.
4
1
0
9
R
R910
10
FL906
5
6
3
1
4
2
P2
P4
P1
P3
6
P
5
P
FB905
1800
VREG_MICRO_SD_2.85V
VREG_MSME_1.8V
VREG_RUIM_2.85V
4
1
9
R
K
7.
4
VREG_SENSOR_IO_1.8V
R909
1
L901
56n
L902
56n
ZD900
R906
16
VA902
ZD902
16
R907
C906
10u
D901
7
0
9
C
p
0
8
6
C909
0.1u
C914
39p
C901
22p
KEY_TOUCH_2.8V
D900
C902
22p
VA900
VA901
6
0
9
B
F
0
0
8
1
3
0
9
D
9
0
9
D
2
0
9
D
L903
1.2n
270n
L900
C908
680p
CN900
8
7
9
6
10
5
11
4
12
3
13
2
14
1
ZD901
VBUS
CN902
23
22
24
21
25
20
26
19
27
18
28
17
29
16
30
15
31
14
32
13
33
12
34
11
35
10
36
9
37
8
38
7
39
6
40
5
41
4
42
3
43
2
44
1
FB901
1800
VREG_SENSOR_2.6V
K
7.
4
5
1
9
R
D907
D905 D906
D904
D908
R908
1
VREG_CAM_DVDD_1.8V
VREG_CAM_AVDD_2.8V
JTAG_PS_HOLD
CAM_I2C_SCL
CAM_I2C_SDA
MSM_TDI
MSM_TDO
UART3_TX
UART3_RX
MSM_RTCK
MSM_TMS
MSM_TRSTN
nJTAG_RESOUT
CAM_MCLK
MIC_2N
MIC_1N
GND
SIM_RESET
SIM_DATA
SIM_CLK
EAR_L
MUIC_DP
MUIC_DM
MICRO_SD_CMD
MOTOR_N
MOTOR_P
MIC_BIAS
MIC_1P
HS_MIC
HEADSET_DET_IN
PROX_I2C_SCL
PROX_OUT
VT_CAM_RESET_N
VT_CAM_PWDN
FM_ANT
KPD_PWR_N
KEY_TOUCH_I2C_SCL
KEY_TOUCH_I2C_SDA
KEY_TOUCH_INT_N
MICRO_SD_DATA[2]
MICRO_SD_DATA[3]
MICRO_SD_CLK
MICRO_SD_DATA[0]
MICRO_SD_DATA[1]
VOL_UP
VOL_DOWN
FLT_CAM_HSYNC
FLT_CAM_DATA[7]
FLT_CAM_DATA[6]
FLT_CAM_DATA[5]
FLT_CAM_DATA[4]
FLT_CAM_DATA[3]
FLT_CAM_DATA[2]
FLT_CAM_VSYNC
FLT_CAM_DATA[0]
FLT_CAM_DATA[1]
PROX_I2C_SDA
USB_ID
SPK_P
SPK_N
RCV_P
RCV_N
MIC_BIAS2
MICRO_SD_DETECT
MSM_TCK
MIC_2P
EAR_R
KEY_TOUCH_LED_N
FLT_CAM_PCLK
CARD FPCB Conn
1
.
1
n
o
i
s
i
v
e
r
_
e
u
l
a
v
e
g
n
a
h
C
USB FPCB Conn
EARJACK FPCB Connector
TOUCH FPCB Conn
BEAD(FB902) TO INDUCTOR(L903) _ REV 1.1
Insert filter
Insert varistor _ 480p
Remove PMIC key controller
Change value _ 480p
Change net_name
Change key touch 1.8V
Fix netname
add_cam_pclk
Chang connector_REVC
1
.
1
V
E
R
_
)
6
0
9
B
F
(
D
A
E
B
O
T
)
0
1
9
C
(
I
N
D
_
P
A
C
1
.
1
n
o
i
s
i
v
e
r
_
e
u
l
a
v
e
g
n
a
h
C
1
.
1
V
E
R
_
E
U
L
A
V
E
G
N
A
H
C
CAP(C911) TO DIODE(ZD900) _ REV 1.1
CHANGE REF_NO. (VA100_VA101 TO VA900_VA901)
CHANGE REF_NO. (VA102 TO VA902)
1
.
1
V
E
R
_
)
1
0
9
D
Z
(
E
D
O
I
D
O
T
)
2
1
9
C
(
P
A
C
1
.
1
V
E
R
_
)
2
0
9
D
Z
(
E
D
O
I
D
O
T
)
3
1
9
C
(
P
A
C